Abstract:
An apparatus for processing streams is disclosed. The apparatus includes a trellis encoding unit which changes a part of streams with parities, a RS re-encoding unit which corrects at least one of parity part and data part of the streams, and generates new codewords to match the changed part of the streams, and a multiplexer which re-constructs the streams with the generated codewords. This enhances a reception quality of a broadcasting receiver.
Abstract:
A method for processing a stream of a digital broadcast transmitter, the digital broadcast transmitter, a method of processing a stream of a digital broadcast receiver, and the digital broadcast receiver are provided. The method includes: configuring a stream including a slot to which mobile data is allocated; and encoding and interleaving the configured stream and outputting the encoded and interleaved stream. Each slot of the stream includes signaling data, and the signaling data includes a slot indicator indicating a type of a slot, and may include at least one of a backward training indicator and a forward training indicator according to a value of the slot indicator. Accordingly, information on an adjacent slot is efficiently used.
Abstract:
A method for processing a stream of a digital broadcast receiver is provided. The method which processes a stream that is divided into a first area allocated to first mobile data and a second area allocated to normal data, includes: receiving a transport stream including new mobile data in at least a part of the second area separately from the first mobile data, demodulating the transport stream, equalizing the demodulated transport stream, and decoding at least one of the first mobile data and the new mobile data from the equalized transport stream. Accordingly, mobile data services may be provided in various ways.
Abstract:
A content processing apparatus and content processing method are provided. The content processing apparatus includes: a communication interface configured to communicate with an external storage; a controller configured to transmit, to the external storage through the communication interface, a first data unit from among a plurality of data units constituting a content item; and an internal storage configured to store a second data unit, which includes data units that are not transmitted to the external storage from among the plurality of data units of the content item, wherein the first data unit transmitted to the external storage does not allow the content item to be reproduced normally without the second data unit.
Abstract:
A digital broadcasting transmitter is provided. The transmitter includes a known data inserting unit which inserts a known data to a stream, and a trellis encoding unit which encodes the stream sequentially using a plurality of trellis encoders, wherein the known data inserting unit inserts the known data to the specific location of the stream, so that the known data may be trellis encoded by at least one specific trellis encoder.
Abstract:
A digital broadcast transmission apparatus includes a Reed-Solomon (RS) encoder to perform RS encoding of data to obtain RS-encoded data formatted in data packets each including a predetermined number of bytes; a sync byte inserter to insert sync bytes indicating a start point of one of the data packets in a predetermined location of the RS-encoded data; an interleaver to interleave the RS-encoded data after the sync bytes have been inserted in the RS-encoded data to obtain interleaved data; and a data stuffer to sequentially insert complete packets of the interleaved data each including the predetermined number of bytes in a field, and insert an initial portion of a final packet of the interleaved data beginning in the field in residual bytes of the field that are less than the predetermined number of bytes.
Abstract:
An apparatus for processing a transport stream is provided. The apparatus includes a detector to detect data bits from a stream, an encoder to encode the detected data bits and generate two encoding values for each data bit, and a stream constructor to construct a transport stream using the generated encoding values. Accordingly, it is possible to encode the data bits into a transport stream having a coding rate of 1/3.
Abstract:
A method for processing a stream of a digital broadcast receiver is provided. The method which processes a stream that is divided into a first area allocated to first mobile data and a second area allocated to normal data, includes: receiving a transport stream including second mobile data in at least a part of the second area separately from the first mobile data, demodulating the transport stream, equalizing the demodulated transport stream, and decoding at least one of the first mobile data and the second mobile data from the equalized transport stream. Accordingly, mobile data services may be provided in various ways.
Abstract:
A device for processing streams is disclosed. The device includes a stream arranging unit which stacks and rearranges streams, and a dummy inserting unit which inserts a dummy into the rearranged streams. The device may further include a convolutional interleaver which interleaves the stream with a dummy or an RS encoder and a CRC encoder. This enhances the stability of digital broadcasting services.
Abstract:
A transmission stream (TS) generating apparatus is provided. The apparatus includes an adaptor which receives general data and generates a stream having a plurality of packets, and which provides adaptive field in some of the plurality of packets, and an inserter which inserts additional data into all the payload areas of some of the plurality of packets that are not provided with the adaptive fields. Because additional data is transmitted, without requiring adaptive field header in certain packet, data transmission rate is increased.